Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Transaxle Assembly

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 and 21



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Fig. Fig. 1: Disconnect the clutch cable at the point indicated



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Fig. Fig. 2: Removing the wheel house protector



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Fig. Fig. 3: Separating the control rod and support rod-1982-90 vehicles



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Fig. Fig. 4: Separating the control rod and support rod-1991-96 vehicles



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Fig. Fig. 5: Proper method of supporting the engine when removing the transaxle



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Fig. Fig. 6: Engine mount and gusset securing bolts-1982-90 vehicles



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Fig. Fig. 7: Transaxle rear mounting bracket-1982-86 vehicles



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Fig. Fig. 8: Right engine mount-1982-86 vehicles



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Fig. Fig. 9: Transaxle mounting bolt torque sequence-1982-86 gasoline engines



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Fig. Fig. 10: Transaxle mounting bolt torque sequence-1983-87 diesel engines



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Fig. Fig. 11: Transaxle mounting bolt torque sequence-CA16DE and CA18DE engines



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Fig. Fig. 12: Transaxle mounting bolt torque sequence-1988 E16i engine, except 4WD Sentra



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Fig. Fig. 13: Transaxle mounting bolt torque sequence-1988 4WD Sentra



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Fig. Fig. 14: Transaxle mounting bolt torque sequence-1989 4WD Sentra



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Fig. Fig. 15: Transaxle mounting bolt torque sequence-1989-90 GA16i engine



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Fig. Fig. 16: Drain the transaxle assembly, before removing



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Fig. Fig. 17: Disconnect the clutch cable from the release lever



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Fig. Fig. 18: Remove the speedometer cable from the transaxle housing



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Fig. Fig. 19: With the engine/transaxle assembly properly supported from above, remove the front crossmember



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Fig. Fig. 20: Disconnect the shifter control rod at the transaxle



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Fig. Fig. 21: Carefully pry the halfshaft from the transaxle

1982-86 Vehicles
  1. Remove the battery.
  2.  

On the Pulsar, remove the battery holding plate and the radiator reservoir.

  1. Drain the lubricant from the transaxle.
  2.  
  3. Remove the driveshafts from the transaxle.
  4.  

Take care not to damage the seal lips. After the driveshafts are removed, Insert a dummy shaft Into each opening so that the side gears don't fall into the case.

  1. Remove the distributor, the air induction tube, the EGR tube and the exhaust manifold cover.
  2.  
  3. Remove the heater hose clamp.
  4.  
  5. Remove the clutch control cable from the lever.
  6.  
  7. Disconnect the speedometer cable at the case.
  8.  
  9. Disconnect all wiring from the case. Remove the wheel well liner.
  10.  
  11. Separate the control and support rods from the case. Disconnect the exhaust pipe at the manifold.
  12.  
  13. Place a jackstand under the engine oil pan to take up the engine weight.
  14.  
  15. Take up the transaxle weight with a floor jack.
  16.  
  17. Remove the engine gusset bolts. On the Pulsar, remove the transaxle protector.
  18.  
  19. On 5-speed models, remove the engine right side and rear mounting brackets and the starter.
  20.  
  21. Attach a shop crane to the transaxle at the clutch control cable bracket.
  22.  
  23. Unbolt the transaxle from the engine. On 5-speed models, pull the engine to the right and slide the transaxle away from the engine.
  24.  
  25. Lower the transaxle from the vehicle.
  26.  

To Install:
  1. Install the transaxle in the vehicle. Note the following points:
    1. Clean all mating surfaces.
    2.  
    3. Apply EP chassis lube to the splines on the clutch disc and input shaft.
    4.  
    5. Fill transaxle with 80W-90 gear oil. Apply sealant to the threads of the filler and drain plugs.
    6.  

  2.  
  3. Install the driveshafts for the transaxle.
  4.  
  5. Install all brackets and the protector cover, if equipped.
  6.  
  7. Tighten transaxle to engine bolts as follows:

    With E16 engine-12-15 ft. lbs. (16-21 Nm)
     
    With CD17 engine and 7T transaxle-22-30 ft. lbs. (30-40 Nm)
     
    With CD17 engine and 9T transaxle-32-43 ft. lbs. (43-58 Nm)
     

  8.  

  1. Tighten engine gusset to transaxle bolts to 12-15 ft. lbs. (16-21 Nm)
  2.  
  3. Reconnect exhaust pipe at manifold and starter if removed.
  4.  
  5. Install all wiring, cables and clamps and wheel well liner.
  6.  
  7. Install the distributor, the air induction tube, the EGR tube and the exhaust manifold cover.
  8.  
  9. Install the battery and any other components that were removed.
  10.  
  11. Road test for proper operation.
  12.  

1987-90 Vehicles
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the battery and battery bracket.
  4.  
  5. Remove the air duct, air cleaner box and air flow meter.
  6.  
  7. Raise the front of the vehicle and support safely.
  8.  
  9. Drain the transaxle oil.
  10.  
  11. On Sentra (4WD) vehicles, remove the transfer case.
  12.  
  13. Withdraw the halfshafts from the transaxle.
  14.  

When removing halfshafts, use care not to damage the lip of the oil seal. After shafts are removed, Insert a steel bar or wooden dowel of suitable diameter to prevent the side gears from rotating and falling into the differential case.

  1. Remove the wheel well protector(s).
  2.  
  3. Separate the control rod and support rod from the transaxle.
  4.  
  5. Remove the engine gusset securing bolt and the engine mounting.
  6.  
  7. Remove the clutch control cable from the operating lever.
  8.  
  9. Disconnect speedometer cable from the transaxle.
  10.  
  11. Disconnect the wires from the reverse (back-up), neutral and overdrive switches. Disconnect the speed and position switch sensors from the transaxle also, if so equipped.
  12.  
  13. Support the engine by placing a jack under the oil pan, with a wooden block placed between the jack and pan for protection.
  14.  
  15. Support the transaxle with a hydraulic floor jack.
  16.  
  17. Remove the engine mounting securing bolts.
  18.  

Most of the transaxle mounting bolts are different lengths. Tagging the bolts upon removal will facilitate proper tightening during installation.

  1. Remove the bolts attaching the transaxle to the engine.
  2.  
  3. Using the hydraulic floor jack as a carrier, carefully lower the transaxle down and away from the engine.
  4.  

To install:
  1. Before installing, clean the mating surfaces on the engine rear plate and clutch housing. On Sentra (4WD), apply sealant KP51000150 or equivalent.
  2.  
  3. Apply a light coat of a lithium-based grease to the spline parts of the clutch disc and the transaxle input shaft.
  4.  
  5. Raise the transaxle into place and bolt it to the engine. Install the engine mounts. Torque the transaxle mounting bolts as follows:

    1987-88 Pulsar/Sentra (E16S and E16i)-tighten bolts (1) and (3) to 12-15 ft. lbs. (16-22 Nm). Tighten bolts (2) and (4) to 14-22 ft. lbs. (20-29 Nm). Bolts (3) and (4) are found all Sentra models.
     
    1987-88 Pulsar (CA18DE)-On CA18DE engines, tighten bolts (1) and (2) to 32-43 ft. lbs. (43-58 Nm) and bolts (3) to 22-30 ft. lbs. (30-40 Nm).
     
    1989 Pulsar (CA18DE)-tighten bolts (1) and (2) to 32-43 ft. lbs. (43-58 Nm) and bolt (3) to 22-30 ft. lbs. (30-40 Nm).
     
    Pulsar and 2WD Sentra-tighten all bolts to 12-15 ft. lbs. (16-21 Nm).
     
    Sentra 4WD-torque all the bolts to 22-30 ft. lbs. (29-41 Nm).
     

  6.  
  7. Connect the speedometer cable to the transaxle.
  8.  
  9. Connect the clutch cable to the operating lever.
  10.  
  11. Connect the control and support rods to the transaxle.
  12.  
  13. Install the wheel well liners.
  14.  
  15. Install the halfshafts.
  16.  
  17. On Sentra (4WD) vehicles, install the transfer case.
  18.  
  19. Lower the vehicle.
  20.  
  21. Install the air duct, air cleaner box and air flow meter.
  22.  
  23. Install the battery and battery bracket.
  24.  
  25. Connect the negative battery cable.
  26.  

When filling the transaxle make certain that the fluid meets API GL-4 specifications. For specific weight information, refer to your owners manual or Routine Maintenance of this information.

  1. Remove the filler plug and fill the transaxle to the proper level. Fill to the level of the plug hole. Apply a thread sealant to the threads of the filler plug and install the plug in the transaxle case.
  2.  

1991-93 Vehicles
  1. Disconnect the negative and positive battery cables.
  2.  
  3. Remove the battery and battery bracket.
  4.  
  5. Remove the air duct, air cleaner box and the air flow meter.
  6.  
  7. Raise the front of the vehicle and support it safely.
  8.  
  9. Drain the transaxle oil.
  10.  
  11. Withdraw the halfshafts from the transaxle.
  12.  

When removing the halfshafts, be careful not to damage the lip of the oil seal. After shafts are removed, insert a steel bar or wooden dowel of a suitable diameter to prevent the side gears from rotating and falling into the differential case.

  1. Remove the wheel well protector(s).
  2.  
  3. Separate the control rod and support rod from the transaxle.
  4.  
  5. Remove the engine gusset securing bolt and the engine mounting.
  6.  
  7. Remove the clutch control cable from the operating lever.
  8.  
  9. Disconnect the speedometer cable from the transaxle.
  10.  
  11. Disconnect the wires from the reverse (back-up), neutral and overdrive switches. Disconnect the speed and position switch sensors from the transaxle also, if so equipped.
  12.  
  13. Support the engine by placing a jack under the oil pan, with a wooden block placed between the jack and pan for protection.
  14.  
  15. Support the transaxle with a jack.
  16.  
  17. Remove the engine mounting securing bolts.
  18.  

Most of the transaxle mounting bolts are different lengths. Tagging the bolts upon removal will facilitate proper tightening during installation.

  1. Remove the bolts attaching the transaxle to the engine.
  2.  
  3. Carefully lower the transaxle down and away from the engine.
  4.  

To install:
  1. Before installing, clean the mating surfaces on the engine rear plate and clutch housing.
  2.  
  3. Apply a light coat of a lithium-based grease to the spline parts of the clutch disc and the transaxle input shaft.
  4.  
  5. Raise the transaxle into place and bolt it to the engine. Install the engine mounts. Torque the transaxle mounting bolts.
  6.  

For bolt identification, tightening specifications and sequence, refer to the appropriate graphic.

  1. Connect the speedometer cable to the transaxle.
  2.  
  3. Connect the clutch cable to the operating lever.
  4.  
  5. Connect the control and the support rods to the transaxle.
  6.  
  7. Install the wheel well protectors.
  8.  
  9. Install the halfshafts.
  10.  
  11. Lower the vehicle.
  12.  
  13. Install the air duct, air cleaner box and the air flow meter.
  14.  
  15. Install the battery and battery bracket.
  16.  
  17. Connect the battery cables.
  18.  

When filling the transaxle make certain that the fluid meets API GL-4 specifications. For specific weight information, refer to your owners manual or Routine Maintenance of this information.

  1. Remove the filler plug and fill the transaxle to the proper level. Fill to the level of the plug hole. Apply a thread sealant to the threads of the filler plug and install the plug in the transaxle case.
  2.  

See Figures 22 and 23



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Fig. Fig. 22: Transaxle bolt identification and tightening specifications-1991-96 GA16DE engine



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Fig. Fig. 23: Transaxle bolt identification and tightening specifications-1991-96 SR20DE engine

1994-96 Vehicles
  1. Disconnect the negative and positive battery cables.
  2.  
  3. Remove the battery and battery tray.
  4.  
  5. Remove the air duct, air cleaner box and the air flow meter.
  6.  
  7. Raise the front of the vehicle and support it safely.
  8.  
  9. Remove the clutch control cable from the operating lever.
  10.  
  11. Disconnect the speedometer cable from the transaxle.
  12.  
  13. Disconnect the wires from the reverse (back-up), neutral and ground harness connectors.
  14.  
  15. Disconnect the vehicle speed sensor and the crankshaft position sensor from the transaxle.
  16.  
  17. Remove the starter motor from the transaxle.
  18.  
  19. Remove the through bolts that secure shift control rod and the support rod from the transaxle. Disconnect the rods from the transaxle.
  20.  
  21. Drain the transaxle oil.
  22.  
  23. Remove the exhaust front tube.
  24.  
  25. Withdraw the halfshafts from the transaxle.
  26.  

When removing the halfshafts, be careful not to damage the lip of the oil seal. After shafts are removed, insert a steel bar or wooden dowel of a suitable diameter to prevent the side gears from rotating and falling into the differential case.

  1. Support the engine by placing a jack under the oil pan, with a wooden block placed between the jack and pan for protection.
  2.  
  3. Support the transaxle with a jack.
  4.  
  5. Remove the rear and left side engine mounts.
  6.  

Most of the transaxle mounting bolts are different lengths. Tagging the bolts upon removal will facilitate proper tightening during installation.

  1. Remove the bolts attaching the transaxle to the engine.
  2.  
  3. Slide the transaxle away from the engine and carefully lower the transaxle down and away from the engine.
  4.  

To install:
  1. Before installing, clean the mating surfaces on the engine rear plate and clutch housing.
  2.  
  3. Apply a light coat of a lithium-based grease to the spline parts of the clutch disc and the transaxle input shaft.
  4.  
  5. Raise the transaxle into place and bolt it to the engine. Install the engine mounts. Torque the transaxle mounting bolts to specifications.
  6.  

For bolt identification, tightening specifications and sequence, refer to the appropriate graphic.

  1. Install the halfshafts.
  2.  
  3. Install the exhaust front tube.
  4.  
  5. Connect the control and the support rods to the transaxle.
  6.  
  7. Install the starter motor.
  8.  
  9. Connect the vehicle speed sensor and the crankshaft position sensor from the transaxle.
  10.  
  11. Connect the back-up lamp switch, neutral switch, and the ground harness connectors.
  12.  
  13. Connect the speedometer cable to the transaxle.
  14.  
  15. Connect the clutch cable to the operating lever.
  16.  
  17. Lower the vehicle.
  18.  
  19. Install the air duct, air cleaner box and the air flow meter.
  20.  
  21. Install the battery and battery bracket.
  22.  
  23. Connect the battery cables.
  24.  

For bolt identification, tightening specifications and sequence, refer to the appropriate graphic.

  1. Remove the filler plug and fill the transaxle to the proper level. Fill to the level of the plug hole. Apply a thread sealant to the threads of the filler plug and install the plug in the transaxle case.
  2.  

 
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